WO2014163197A1 - Lampe de véhicule - Google Patents

Lampe de véhicule Download PDF

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Publication number
WO2014163197A1
WO2014163197A1 PCT/JP2014/060015 JP2014060015W WO2014163197A1 WO 2014163197 A1 WO2014163197 A1 WO 2014163197A1 JP 2014060015 W JP2014060015 W JP 2014060015W WO 2014163197 A1 WO2014163197 A1 WO 2014163197A1
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WO
WIPO (PCT)
Prior art keywords
focal point
lens
light emitting
light source
emitting surface
Prior art date
Application number
PCT/JP2014/060015
Other languages
English (en)
Japanese (ja)
Inventor
恭史 鈴木
Original Assignee
市光工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 市光工業株式会社 filed Critical 市光工業株式会社
Priority to US14/782,172 priority Critical patent/US9709237B2/en
Priority to CN201480019203.3A priority patent/CN105102883A/zh
Priority to EP14779857.3A priority patent/EP2985523A4/fr
Publication of WO2014163197A1 publication Critical patent/WO2014163197A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates

Definitions

  • the present invention relates to a so-called projector-type vehicular lamp that uses a semiconductor-type light source as a light source.
  • the vehicular lamp of Patent Document 1 includes a light source, a reflector having a spheroidal reflecting surface, and a projection lens, and the major axis of the reflector is inclined rearward and downward from the second focal point.
  • the light source is arranged to be inclined rearward along the long axis of the inclined reflector.
  • the light source and the reflector are disposed so as to be inclined rearward, whereby the light emitted from the light source can be reflected by the reflector with high utilization efficiency and can enter the projection lens.
  • the vehicular lamp of Patent Document 2 includes an LED light source, an elliptical reflection surface, and a projection lens, and the long axis of the reflection surface is inclined downward toward the rear, and the LED light source faces rearward. And are inclined downward.
  • the vehicular lamp of Patent Document 2 can effectively utilize the directivity performance of the LED light source.
  • the vehicular lamp of Patent Document 1 and the vehicular lamp of Patent Document 2 simply place the light source, the LED light source, the reflector, and the reflecting surface in a slanting direction rearward. For this reason, the reflector and the reflecting surface are greatly shifted downward with respect to the lens axis of the projection lens. Thereby, a vertical dimension may become large.
  • the problem to be solved by the present invention is that the conventional vehicle lamp may have a large vertical dimension.
  • the present invention (the invention according to claim 1) includes a reflector having a reflecting surface based on an ellipse, a semiconductor light source in which the center of the light emitting surface is disposed at or near the first focal point of the reflecting surface, and a lens focal point.
  • a projection lens positioned at or near the second focal point of the reflection surface, the lens axis of the projection lens being shifted upward or downward with respect to the center of the light emission surface,
  • the light emitting surface is rotated upward or downward about the center or the vicinity thereof, and the light emitting surface is rotated upward or downward so as to face the reflecting surface around the center of the light emitting surface or the vicinity thereof,
  • the rotation angle of the light emitting surface is larger than the rotation angle of the reflection surface.
  • the present invention includes a reflector having a reflecting surface based on an ellipse, a semiconductor light source in which the center of the light emitting surface is disposed at or near the first focal point of the reflecting surface, and a lens focal point.
  • a projection lens located at or near the second focal point of the reflecting surface, the second focal point and the lens focal point located above or below the first focal point, the optical axis of the reflecting surface, and the projection lens.
  • the lens axis intersects at the second focal point or the lens focal point or in the vicinity thereof, and the light emitting surface intersects with the optical axis at the first focal point or the center of the light emitting surface or in the vicinity thereof. Is larger than the angle between the optical axis and the lens axis.
  • the rotation angle of the light emitting surface of the semiconductor-type light source is larger than the rotation angle of the reflection surface of the reflector. That is, the angle formed by the extension line of the light emitting surface of the semiconductor light source and the lens axis of the projection lens is larger than the angle formed by the optical axis of the reflection surface of the reflector and the lens axis of the projection lens. For this reason, since the angle at which the reflector is rotated can be reduced, the size of the reflection surface of the reflector being shifted downward or upward with respect to the lens axis of the projection lens is smaller than that of a conventional vehicle lamp. can do. As a result, the vertical dimension can be made compact.
  • the vehicular lamp of the present invention can make the vertical dimension compact by reducing the angle at which the reflector is rotated, while making the angle at which the semiconductor light source is rotated larger than the rotation angle of the reflector, Light from a semiconductor-type light source can be effectively used with high efficiency.
  • FIG. 1 is a partial schematic longitudinal sectional view (partially schematic vertical sectional view) showing a first embodiment of a vehicular lamp according to the present invention.
  • FIG. 2 is an explanatory diagram showing a relative relationship among the reflector, the semiconductor-type light source, and the projection lens.
  • FIG. 3 is a partial schematic longitudinal sectional view (partially schematic vertical sectional view) showing a second embodiment of the vehicular lamp according to the present invention.
  • front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle lamp according to the present invention is mounted on a vehicle. Is right.
  • Embodiment 1 shows Embodiment 1 of a vehicular lamp according to the present invention.
  • the configuration of the vehicular lamp in the first embodiment will be described.
  • a headlamp of an automotive headlamp will be described.
  • reference numeral 1 denotes a vehicular lamp in the first embodiment.
  • the vehicular lamp 1 is mounted on both the left and right sides of the front portion of the vehicle.
  • the vehicular lamp 1 includes a lamp housing (not shown), a lamp lens (not shown), a semiconductor light source 2, a projection lens 3, a reflector 4, and a heat sink member 5. And comprising.
  • the lamp housing and the lamp lens define a lamp chamber (not shown).
  • the semiconductor-type light source 2, the projection lens 3, the reflector 4, and the heat sink member 5 constitute a projector-type lamp unit.
  • the lamp units 2, 3, 4, and 5 are disposed in the lamp chamber, and are provided with a vertical optical axis adjustment mechanism (not shown) and a horizontal optical axis adjustment mechanism (not shown). Are attached to the lamp housing.
  • the light emitting surface 20 of the semiconductor-type light source 2 faces upward.
  • the reflector 4 is disposed above the semiconductor light source 2.
  • the semiconductor-type light source 2 and the reflector 4 are arranged on the rear side with respect to the projection lens 3.
  • the heat sink member 5 is made of a material having high thermal conductivity such as resin or metal die casting (aluminum die casting).
  • the heat sink member 5 includes a plate-shaped attachment portion and a fin-shaped heat radiation portion.
  • the heat sink member 5 also serves as an attachment member for attaching the semiconductor light source 2, the projection lens 3, and the reflector 4.
  • the reflector 4 is made of, for example, a material having high thermal conductivity such as a resin member or metal die-casting (aluminum die-casting) and a light-impermeable material.
  • the reflector 4 is attached to the heat sink member 5.
  • the reflector 4 has a hollow shape in which the front side portion and the lower side portion are open, and the rear side portion, the upper side portion, and the left and right side portions are closed.
  • the reflection surface 40 reflects the light L1 from the semiconductor light source 2 to the projection lens 3 side as reflected light (L1).
  • the reflection surface 40 may be a reflection surface made of a simple spheroid.
  • the reflection surface 40 is a free-form surface.
  • the first focal point F1 and the second focal point (or the second focal line) F2 of the reflective surface 40 do not have a single focal point in a strict sense, but a plurality of reflective surfaces are mutually connected.
  • the difference in focal length is small and shares almost the same focal point. Therefore, in this specification and drawings, they are simply referred to as a first focus and a second focus.
  • the reflective surface 40 has an optical axis Z2 connecting the first focal point F1 and the second focal point F2.
  • the optical axis Z2 of the reflective surface 40 does not have a single optical axis in a strict sense, but there is little difference between the optical axes of the plurality of reflective surfaces, and the optical axes Z2 are substantially the same. Sharing. Therefore, in this specification and drawings, it is simply referred to as an optical axis.
  • the second focus F2 is located above the first focus F1. That is, the reflecting surface 40 is formed by rotating the second focal point F2 on the projection lens 3 side upward with the first focal point F1 on the semiconductor-type light source 2 side or the vicinity thereof as a center. As a result, the optical axis Z2 of the reflecting surface 40 is inclined such that the front side is inclined upward and the rear side is inclined downward.
  • normal vehicle lamp (1) a normal projector type lamp unit
  • the optical axis Z20 of the reflecting surface in a normal projector type lamp unit is horizontal as shown in FIG. That is, the second focal point F20 in the normal vehicle lamp (1) is located on the horizontal line having the same height as the first focal point F1, and therefore the optical axis Z20 is horizontal.
  • the semiconductor-type light source 2 is a self-luminous semiconductor-type light source such as an LED, an OEL, or an OLED (organic EL).
  • the semiconductor light source 2 has the light emitting surface 20 that emits the light L1.
  • the semiconductor light source 2 is attached to the heat sink member 5.
  • the center O of the light emitting surface 20 of the semiconductor-type light source 2 is located at or near the first focal point F1 of the reflecting surface 40 of the reflector 4.
  • the light emitting surface 20 of the semiconductor-type light source 2 faces upward and faces the reflecting surface 40 of the reflector 4.
  • the light emitting surface 20 of the semiconductor-type light source 2 is inclined such that the front side is inclined upward and the rear side is inclined downward with the center O of the light emitting surface 20 or the vicinity thereof as the center.
  • the projection lens 3 is made of a resin lens such as a PC material, a PMMA material, or a PCO material. That is, since the light L1 emitted from the semiconductor-type light source 2 does not have high heat, a resin lens can be used as the projection lens 3.
  • the projection lens 3 is attached to the heat sink member 5 via a holder (not shown).
  • the projection lens 3 irradiates the light L1 from the semiconductor-type light source 2 with a predetermined main light distribution pattern such as a high beam light distribution pattern (not shown) to the outside, that is, the front of the vehicle.
  • the projection lens 3 is a projection lens based on an aspherical surface.
  • the projection lens 3 includes a rear entrance surface 30 and a front exit surface 31.
  • the incident surface 30 faces the reflecting surface 40 of the reflector 4.
  • the incident surface 30 is substantially flat or aspherical (convex or concave with respect to the reflecting surface 40).
  • the exit surface 31 is an aspherical convex surface.
  • the lens focal point F3 of the projection lens 3 (the meridional image plane that is the focal plane on the object space side) coincides with or substantially coincides with the second focal point F2 of the reflecting surface 40.
  • the lens focal point F3 is positioned above the first focal point F1.
  • the projection lens 3 moves upward in accordance with the rotational movement amount of the reflecting surface 40 to the upper side of the second focal point F2. That is, the lens axis Z1 of the projection lens 3 moves upward corresponding to the amount of rotational movement of the reflecting surface 40 to the upper side of the second focal point F2.
  • the optical axis Z2 and the lens axis Z1 intersect at the second focal point F2 or the lens focal point F3 or in the vicinity thereof.
  • the light L1 radiated from the light emitting surface 20 of the semiconductor-type light source 2 and the lens axis Z1 of the projection lens 3 or the lens axis Z1 of the reflected light L1 on the reflecting surface 40 of the reflector 4 The light passing through the vicinity (see the solid line arrow in FIG. 1) is mainly applied to the central portion of the high beam light distribution pattern.
  • the lens axis Z10 in the normal vehicle lamp (1) coincides with or substantially coincides with the optical axis Z20 as shown in FIG. That is, since the first focal point F1, the second focal point F20, and the lens focal point F30 in the normal vehicle lamp (1) are located on the same horizontal line, the lens axis Z10 is the same as the optical axis Z20. Horizontal and coincides with or substantially coincides with the optical axis Z20.
  • the optical axis Z20 of the reflection surface (40) of a normal vehicle lamp (1) is horizontal. That is, since the second focus F20 of the normal vehicle lamp (1) is located on the horizontal line having the same height as the first focus F1, the optical axis Z20 is horizontal.
  • the lens axis Z10 of the normal vehicle lamp (1) matches or substantially matches the optical axis Z20. That is, since the first focal point F1, the second focal point F20, and the lens focal point F30 of the normal vehicle lamp (1) are located on the same horizontal line, the lens axis Z10 is horizontal as in the optical axis Z20. In this case, it coincides with or substantially coincides with the optical axis Z20.
  • the lens axis Z1 of the projection lens 3 of the vehicular lamp 1 is shifted upward with respect to the center O of the light emitting surface 20. That is, as shown by the solid line in FIG. 2B, the projection lens 3 of the vehicle lamp 1 is the projection lens (3) of the normal vehicle lamp (1) (in FIG. 2B). With respect to the center O of the light emitting surface 20 with respect to the two-dot chain line).
  • the offset distance between the lens axis Z1 of the projection lens 3 and the center O of the light emitting surface 20 is about 5 mm in this example.
  • the reflecting surface 40 of the reflector 4 of the vehicular lamp 1 is the reflecting surface (40) of the reflector (4) of a normal vehicular lamp (1). ) (Refer to the two-dot chain line in FIG. 2B), the light emitting surface 20 is rotated upward about the center O or the vicinity thereof.
  • the light emitting surface 20 of the semiconductor light source 2 of the vehicular lamp 1 is the same as that of the semiconductor light source (2) of a normal vehicular lamp (1). Centering on or near the center O of the light emitting surface 20 with respect to the light emitting surface (20), the upper side or the lower side (the front side is the upper side and the rear side is the lower side) so as to face the reflecting surface 40 ) It has been rotated.
  • the rotation angle ⁇ 1 (about 25 ° in this example) of the light emitting surface 20 of the semiconductor-type light source 2 is the rotation of the reflecting surface 40 of the reflector 4. It is larger than the angle ⁇ 2 (about 15 ° in this example). That is, the angle ⁇ 1 formed between the lens axis Z10 and the optical axis Z20 of the normal vehicle lamp (1) and the extension line L2 of the light emitting surface 20 is the lens axis Z10 and the optical axis Z20 of the normal vehicle lamp (1). And an angle ⁇ 2 formed by the reflecting surface 40 and the optical axis Z2.
  • the second focal point F2 of the reflecting surface 40 of the reflector 4 and the lens focal point F3 of the projection lens 3 are the same as those of the reflecting surface 40 of the reflector 4. It is located above the first focus F1.
  • the optical axis Z2 of the reflecting surface 40 of the reflector 4 and the lens axis Z1 of the projection lens 3 are the second focal point F2 of the reflecting surface 40 of the reflector 4 or the projection lens 3. Intersects at or near the lens focal point F3.
  • the light emitting surface 20 of the semiconductor-type light source 2 and the optical axis Z2 of the reflecting surface 40 of the reflector 4 are the first focal point F1 of the reflecting surface 40 of the reflector 4 or the semiconductor-type light source 2.
  • the lens axis Z1 of the vehicular lamp 1 and the lens axis Z10 of the normal vehicular lamp (1) are parallel to each other. For this reason, an angle ⁇ 1 formed between the extension line L2 of the light emitting surface 20 of the semiconductor-type light source 2 and the lens axis Z1 of the projection lens 3 is the same as the optical axis Z2 of the reflecting surface 40 of the reflector 4. The angle ⁇ 2 formed by the projection lens 3 and the lens axis Z1 is larger.
  • the vehicular lamp 1 according to the first embodiment is configured as described above, and the operation thereof will be described below.
  • the semiconductor type light source 2 is turned on to emit light. Then, the light L1 emitted from the light emitting surface 20 of the semiconductor-type light source 2 is reflected by the reflecting surface 40 of the reflector 4 toward the projection lens 3 side. The reflected light L1 passes through the projection lens 3 and is irradiated outside, that is, in front of the vehicle, as a predetermined light distribution pattern, in this example, as a high beam light distribution pattern.
  • light L1 emitted from the light emitting surface 20 of the semiconductor light source 2 is perpendicular or substantially perpendicular to the center O of the light emitting surface 20 of the semiconductor light source 2 (see solid line arrows in FIG. 1). Is stronger (luminous intensity, illuminance, light quantity, etc. are larger or higher) compared to other light (see dashed arrows in FIG. 1). This strong light is transmitted through the lens axis Z1 of the projection lens 3 or the vicinity thereof. For this reason, it is suitable for forming a high luminous intensity zone (hot zone) at the center of the high beam light distribution pattern.
  • heat generated in the semiconductor light source 2 is radiated to the outside through the heat sink member 5.
  • the rotation angle ⁇ 1 of the light emitting surface 20 of the semiconductor light source 2 is larger than the rotation angle ⁇ 2 of the reflection surface 40 of the reflector 4 as shown in FIG. That is, the angle ⁇ 1 formed between the extension line L2 of the light emitting surface 20 of the semiconductor light source 2 and the lens axis Z1 of the projection lens 3 is the angle formed between the optical axis Z2 of the reflection surface 40 of the reflector 4 and the lens axis Z1 of the projection lens 3. It is larger than ⁇ 2.
  • the angle ⁇ 2 for rotating the reflector 4 can be reduced, the size of the reflection surface 40 of the reflector 4 being shifted downward with respect to the lens axis Z1 of the projection lens 3 is compared with a conventional vehicle lamp. And can be made smaller. As a result, the vertical dimension can be made compact.
  • the vehicular lamp 1 reduces the angle ⁇ 2 for rotating the reflector 4 while making the angle ⁇ 1 for rotating the semiconductor light source 2 larger than the rotation angle ⁇ 2 for the reflector 4 so that the vertical dimension is increased.
  • the light L1 from the semiconductor light source 2 can be effectively used with high efficiency. That is, of the light L1 emitted from the light emitting surface 20 of the semiconductor light source 2, light perpendicular to or substantially perpendicular to the center O of the light emitting surface 20 of the semiconductor light source 2 (see solid arrows in FIG. 1). , Stronger than other light (see broken line arrow in FIG. 1) (luminous intensity, illuminance, light quantity, etc. are large or high). This strong light is transmitted through the lens axis Z1 of the projection lens 3 or the vicinity thereof. For this reason, it is suitable for forming a high luminous intensity zone (hot zone) at the center of the high beam light distribution pattern.
  • FIG. 3 shows Embodiment 2 of the vehicular lamp according to the present invention.
  • the same reference numerals as those in FIGS. 1 and 2 denote the same components.
  • the vehicular lamp 100 according to the second embodiment will be described.
  • the vehicular lamp 1 according to the first embodiment is such that the light emitting surface 20 of the semiconductor light source 2 faces upward, and the reflector 4 is disposed above the semiconductor light source 2.
  • the light emitting surface 20 of the semiconductor-type light source 2 is directed downward, and the reflector 4 is disposed below the semiconductor-type light source 2. It is what.
  • the lens axis Z1 of the projection lens 3 is shifted downward with respect to the center O of the light emitting surface 20, and the reflecting surface 40 is centered on or near the center O of the light emitting surface 20.
  • the light emitting surface 20 is rotated downward so that the light emitting surface 20 faces the reflecting surface 40 around the center O or the vicinity of the light emitting surface 20, and the rotation angle ⁇ 1 of the light emitting surface 20 is reflected.
  • the rotational angle ⁇ 2 of the surface 40 is larger.
  • the second focal point F2 and the lens focal point F3 are located below the first focal point F1, and the optical axis Z2 of the reflecting surface 40 and the lens axis Z1 of the projection lens 3 Intersect at the second focal point F2 or the lens focal point F3 or in the vicinity thereof, and the light emitting surface 20 and the optical axis Z2 intersect at the first focal point F1 or the center O of the light emitting surface 20 or in the vicinity thereof.
  • the angle ⁇ 1 formed by the lens axis Z1 is larger than the angle ⁇ 2 formed by the optical axis Z2 and the lens axis Z1.
  • the vehicular lamp 100 according to the second embodiment is configured as described above, it is possible to achieve substantially the same operational effects as the vehicular lamp 1 according to the first embodiment.
  • a headlamp that irradiates a high beam light distribution pattern will be described.
  • a light distribution pattern other than the high beam light distribution pattern for example, a low beam light distribution pattern may be irradiated.
  • the shade 6 is disposed between the semiconductor light source 2 and the reflector 4 and the projection lens 3, and the upper end of the shade 6 is The edge is arranged at the second focal point F2 or the lens focal point F3 or in the vicinity thereof.
  • an additional reflection surface (not shown) may be provided on the shade 6 to add the additional light distribution pattern to the low beam light distribution pattern.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Parfois, la taille verticale d'une lampe de véhicule conventionnelle augmente. La présente invention concerne une lampe de véhicule comprenant un réflecteur (4), une source lumineuse à semi-conducteur (2), et une lentille de projection (3). L'axe de lentille (Z1) de la lentille de projection (3) se déplace vers le haut par rapport au centre (O) d'une surface d'émission de lumière (20). Une surface de réflexion (40) se met en rotation vers le haut autour du centre (O) ou à proximité du centre de la surface d'émission de lumière (20). La surface d'émission de lumière (20) se met en rotation vers le haut pour faire face à la surface de réflexion (40) autour du centre (O) ou à proximité du centre de la surface d'émission de lumière (20). L'angle de rotation (θ1) de la surface d'émission de lumière (20) est supérieur à l'angle de rotation (θ2) de la surface de réflexion (40). Par conséquent, selon la présente invention, la taille verticale peut être réduite tandis que la lumière (L1) issue de la source lumineuse à semi-conducteur (2) peut être efficacement et effectivement utilisée.
PCT/JP2014/060015 2013-04-04 2014-04-04 Lampe de véhicule WO2014163197A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US14/782,172 US9709237B2 (en) 2013-04-04 2014-04-04 Vehicle lamp
CN201480019203.3A CN105102883A (zh) 2013-04-04 2014-04-04 车辆用灯具
EP14779857.3A EP2985523A4 (fr) 2013-04-04 2014-04-04 Lampe de véhicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013078413A JP6111805B2 (ja) 2013-04-04 2013-04-04 車両用灯具
JP2013-078413 2013-04-04

Publications (1)

Publication Number Publication Date
WO2014163197A1 true WO2014163197A1 (fr) 2014-10-09

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PCT/JP2014/060015 WO2014163197A1 (fr) 2013-04-04 2014-04-04 Lampe de véhicule

Country Status (5)

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US (1) US9709237B2 (fr)
EP (1) EP2985523A4 (fr)
JP (1) JP6111805B2 (fr)
CN (1) CN105102883A (fr)
WO (1) WO2014163197A1 (fr)

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CN109373284A (zh) * 2018-12-25 2019-02-22 马瑞利汽车零部件(芜湖)有限公司 反射式高效输出远光集成车灯模组光学系统
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JP7279513B2 (ja) * 2019-05-24 2023-05-23 市光工業株式会社 車両用灯具
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CN113154331B (zh) * 2020-01-22 2024-01-23 扬明光学股份有限公司 交通工具的投射装置及其制造方法、车前头灯

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JP6111805B2 (ja) 2017-04-12
EP2985523A1 (fr) 2016-02-17

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